{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1649231259",
    "entityType": "Track",
    "nonce": "0x647a513326240b34558776afabef672f8340e23f4da80c677264825af5fd0c4f",
    "signature": "0xdf9aba0c8ffba0901905e32fe91648d52feb4c0ff9e761f93614b3f8d519b69d2e5eccba45a6d01b22ba36a0bd045d3175a3fdea55d2b2ad69fa0eadea33c3ad1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}